The summoner name or tag is incorrect
forku #000
SILVER I
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Match History for Patch: 16.10.1
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Champion Stats for Patch: 16.10.1
Champion Mastery
lvl: 12
103,338
lvl: 10
84,456
lvl: 8
61,828
lvl: 8
54,779
lvl: 7
51,084
lvl: 7
48,503
lvl: 6
40,787
lvl: 6
38,835
lvl: 6
36,447
lvl: 6
33,292
lvl: 6
33,023
lvl: 6
32,394